cmake LWS_HAVE_SYS_PRCTL_H examples

warmcat/libwebsockets CMakeLists.txt :676 

CHECK_C_SOURCE_COMPILES("#include <sys/prctl.h>\nvoid main(void) { while(1) ; } void xxexit(void){}" LWS_HAVE_SYS_PRCTL_H)

c-jimenez/open-ocpp 3rdparty/libwebsockets/CMakeLists.txt :640 

CHECK_INCLUDE_FILE(sys/prctl.h LWS_HAVE_SYS_PRCTL_H)

fluffos/fluffos src/thirdparty/libwebsockets/CMakeLists.txt :623 

CHECK_INCLUDE_FILE(sys/prctl.h LWS_HAVE_SYS_PRCTL_H)